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It’s good to be king.

If you’re planning to go big or go home with your new mattress, you’ll want to make sure you’ve snagged the very best.

We’ve rounded up some of the best king-size mattress options available across different price points and sleep needs. We also have some savvy shopping tips for you.

You’ll find a few different types of king-size mattresses on the market, including:

  • Memory foam mattresses. This popular option is loved for its body-hugging ability. However, some people dislike the feeling of sinking into memory foam.
  • Latex mattresses. While similar to memory foam mattresses, latex mattresses are known for improved breathability and bounce back. They can also be more durable and cooler than regular memory foam. Latex, of course, is not the pick for people with a latex allergy.
  • Innerspring mattresses. These are more traditional mattresses that use a steel coil support system. They’re long lasting and affordable, but they usually only have one (sometimes thin) layer of padding.
  • Hybrid mattresses. These offer the best of both worlds: a coil spring base topped with layers of latex or foam. This blend gives comfort, durability, and support. Plus, hybrid mattresses work well for many sleeping styles.

There are also several sizes of king-size mattresses.

  • regular king (typically 76 inches x 80 inches)
  • California king (typically 72 inches x 84 inches, which is great for sleepers over 6 feet tall)
  • split king (each side is adjustable to raise and lower)
  • Alaskan king (typically the largest mattress available, at approximately 108 inches x 108 inches)

Crowning the best kings took some legwork. Here’s how we did it:

  • We reviewed company policies. Specifically, we dove into warranties, in-home trials, shipping, and return policies.
  • We looked at company reputation and transparency. Each of the brands we feature has a positive reputation, transparent business practices, good customer reviews, and meets federal flammability requirements.
  • We prioritized. We chose mattresses with good materials certifications and included brands that sell a range of king sizes.

Pricing guide

We based our pricing guide on standard king-size mattresses.

  • $ = under $800
  • $$ = $800–$2,000
  • $$$ = over $2,000

Best king-size mattress for back pain

Saatva Solaire Adjustable Mattress

  • Price: $$$
  • Type: foam
  • Height: 13 inches

This adjustable mattress is made of several layers of mixed materials (organic cotton, Talalay latex, and gel-infused memory foam), topped off with an organic cotton pillow top that has a plush feel.

Research from 2015 suggests that a medium-firm, self-inflated mattress — like this Saatva mattress — is best for back pain.

Using a remote, you can adjust the mattress to empty or fill its air chambers depending on your preferences. There are over 50 firmness options, so you and your sleep partner can choose your own firmness level for your side of the bed.

One temporary downside to this mattress is an off-gassing odor upon unboxing. This should only last a few hours, though.

This mattress comes with a 25-year warranty and a 180-night trial.

Buy the Saatva Solaire Adjustable Mattress online.

Best king-size mattress for stomach sleepers

Helix Dawn

  • Price: $$
  • Type: foam
  • Height: 10 inches

This firm option — ideal for both stomach and side sleepers — offers no sinkage and no give.

It’s a good choice for breathability and edge support, which is an issue for other similar mattresses.

Most reviewers can’t agree on its firmness level (Too firm! Not firm enough!), though Helix ranks the mattress high on the firmness scale. Some reviewers complain that it gets too hot, even though Helix says it’s good for breathability.

This mattress is made in the United States and comes with a 100-night sleep trial and a 10-year warranty.

Buy the Helix Dawn online.

Best king-size mattress under $800

Casper Element Mattress

  • Price: $
  • Type: foam
  • Height: 10 inches

This no-frills memory foam mattress features three layers designed with comfort, stability, and support in mind.

Casper notes that the top layer of perforated breathable foam can help reduce heat, thanks to tiny holes that are designed to move heat away from the body.

Overall, reviewers seem happy, but there are a few mentions of edge sinkage, a complaint that’s common for foam mattresses.

This mattress comes with free shipping, a 10-year limited warranty, and free returns (they’ll pick up the mattress for you too).

Buy the Casper Element Mattress online.

Best priced Tempur-Pedic king-size mattress

Tempur-Pedic TEMPUR-Cloud

  • Price: $$$
  • Type: foam
  • Height: 10 inches

This king mattress boasts a moisture-wicking cover and is medium firm. Tempur-Pedic made the mattress with the same memory foam originally developed by NASA for use during shuttle launches.

Reviewers rave about their experience with this mattress, with a smaller number saying it’s too stiff. It’s also worth pointing out that even though this is the lowest priced Tempur-Pedic model, it’s at the top of our pricing guide.

This mattress comes with a 90-night trial and a 10-year warranty.

Buy Tempur-Pedic TEMPUR-Cloud online.

Best king-size foam mattress under $1,000

Tuft & Needle Original Mattress

  • Price: $
  • Type: foam
  • Height: 10 inches

This simple mattress features just two open-cell foam layers, which is great for all sleeping styles. Tuft & Needle promise this mattress offers substantial support, comfort, and pressure relief.

While many reviewers are pleased with this pick, some complain about eventual “squishy” sides and a lack of longevity.

This mattress comes with a 100-night trial, a 10-year limited warranty, and free returns.

Buy the Tuft & Needle Original Mattress online.

Best king-size mattress for side sleepers

Puffy Lux Mattress

  • Price: $$
  • Type: foam
  • Height: 10 inches

This hypoallergenic mattress offers strong support for all sleep types, including side sleepers, thanks to its spinal support. Its “body adapting” technology is said to help reduce strain from pressure points.

As a bonus, this mattress comes with a stain-resistant mattress cover.

It’s tough to find unsatisfied reviews, but a couple of reviewers say it’s just not cool enough for them or that it’s a bit too soft.

This mattress is made in the United States, comes with a 101-night sleep trial, and a lifetime warranty.

Buy the Puffy Lux Mattress online.

Best king-size mattress for people with more weight

The WinkBed Plus

  • Price: $$
  • Type: hybrid
  • Height: 14.5 inches

This hybrid king mattress is specifically designed for people over 300 pounds. It combines pocketed coil components and gel foam — a move intended to give sleepers both restful pressure relief and exceptional support.

The top comfort layer is a soft material mixed with a plant-based fabric called Tencel, which provides a cooling effect.

Less than glowing reviews are hard to come by with this mattress, but some reviewers say it’s too firm for their comfort level.

This mattress is made in the United States and comes with a 120-night trial and a lifetime guarantee.

Buy The WinkBed Plus online.

Best king-size hybrid mattress under $1,000

Dreamfoam by Brooklyn Bedding Arctic Dreams Cooling Gel Mattress

  • Price: $
  • Type: hybrid
  • Height: 10 inches

This hybrid mattress features “open-cell technology,” which gives the mattress a firm structure along with durability.

Its soft quilted top provides a plush feel while also resisting body impressions in the bed. Finally, the mattress offers a cooling effect, thanks to a cooling panel.

Most reviewers are pleased with its quality — especially at its price point — while others point out that over time, the edges tend to sag.

This mattress is made in the United States and comes with a 120-night trial.

Buy the Dreamfoam by Brooklyn Bedding Arctic Dreams Cooling Gel Mattress online.

Best firm king-size mattress

Plank by Brooklyn Bedding

  • Price: $$
  • Type: foam
  • Height: 11.5 inches

This mattress is firm, flat, and flippable. The flat sleep surface promotes a neutral spine position, which is ideal for your back and overall posture.

If you’re interested in a cooling effect, an optional cooling panel can be added.

This mattress gives fair warning of its tough-to-top firmness level, which leaves firm-loving reviewers happy, but has others saying it’s just too firm.

This mattress is made in the United States and offers a 120-night trial and 10-year warranty.

Buy the Plank by Brooklyn Bedding online.

Best king-size pillow top mattress

Avocado Green Mattress (with added pillow top)

  • Price: $$
  • Type: hybrid
  • Height: 13 inches

This hybrid mattress features up to 1,414 pocketed support coils along with Global Organic Latex Standard (GOLS) organic certified latex, Global Organic Textile Standard (GOTS) organic certified wool, and GOTS organic certified cotton.

You can select the pillow top option on Avocado Green’s website by clicking “add pillow top.” This will get you a permanently attached pillow top that adds 2 more inches, making the mattress 13 inches high. This organic latex pillow top is ideal for added pressure relief and a luxury feel.

Most reviews for this pick are positive, but some say that even with the pillow top, it’s too firm for their preference.

This mattress comes with a 1-year trial, free carbon-negative shipping, and a 25-year warranty.

Buy the Avocado Green Mattress (with added pillow top) online.

There are plenty of sleepers best suited to a king-size mattress:

When shopping for a king-size mattress, be sure to do your research and consider your needs, lifestyle, and sleeping style (side, back, stomach, etc.). Many mattresses will say what sleeping position they’re intended for, but in general, opt for something firmer if you’re a back sleeper and softer if you’re a stomach or side sleeper.

Take a look at the mattress’s materials too. You may want to consider those that have certifications like GOTS or GOLS. Think about whether you find foam comfy or if you prefer the extra support of springs, too.

If you can, test out mattresses in person. A test drive is often the fastest way to know if a mattress is right for you. However, if you can’t try a mattress out ahead of time, buy from a company that offers an in-home trial period and a good return policy. Also, take a look at the warranty to see what’s covered.

Is a king-size mattress the biggest mattress?

Nope. There’s a range of king-size mattresses available beyond just a standard king. Alaskan king is usually the largest king-size mattress available, measuring approximately 108 inches x 108 inches.

What’s the difference between a king-size mattress and a California king?

A standard king-size mattress is usually 76 inches x 80 inches, while a California king is typically 72 inches x 84 inches. Thanks to its extra length, a California king tends to be the best choice for sleepers over 6 feet tall.

What’s a split king mattress?

Think of this bed as two twin XL mattresses pushed together. This type of king-size mattress is usually designed to work with an adjustable base and to cater to each sleeper’s needs. One sleeper can sit up, while the other rests in a horizontal position.

These mattresses are good for reducing motion transfer, as each sleeper has their own mattress. This means, you likely won’t be able to feel your partner moving around. The downside is these mattresses tend to cost more and require specific sheets.

How can you choose which king-size mattress to buy?

First, consider who the mattress is accommodating. A tall sleeper? A sleeper with more weight? Multiple sleepers, including children and pets? Then, consider how much space you have. Can you reasonably move the mattress through the halls and doorways to get to your bed frame?

Once you know the answers to these questions, check out the range of king-size mattresses available to find the best dimensions for you and your space.

There are many king-size mattress options, sizes, and price ranges available.

These 11 options checked our boxes for reputation and quality, but be sure to do your research before committing to a brand. Try to test the mattress out in person if possible, or buy from a company that offers an in-home trial.


Breanna Mona is a writer based in Cleveland, OH. She holds a master’s degree in media and journalism and writes about health, lifestyle, and entertainment.